[TOTAL AND COMPLETE DARKNESS] The film blacks out your windows to have absolutely NO LIGHT through. The film also blocks harmful UV rays with its 99% UV rejection rate. This film is NOT RECOMMENDED for DUAL PANE WINDOWS. [EXCELLENT 24/7 PRIVACY] Blocks view in both directions at all times. It is perfect if you don't want anyone to see through your window or glass partition. [STRONG ADHESIVE] Adhesive is protected by release liner. Film will last on the glass for many years. For easier installation, use A LOT of soap/water mixture to soak both the adhesive side and window. [HIGH QUALITY PERFORMANCE] Please take caution when handling the film to experience its full potential, as the slightest fold can create a permanent wrinkle. [FREE TOOLS AND EASY INSTALLATION GUIDE] These help make installation DIY-friendly. Make sure the window/glass surface is completely clean and free of any blemishes. Windows are a vital part of humanity that animates life and gives room to breathe. It is also a pathway into one's individuality, or a space of contemplation, a rest area from ordinary routine. Therefore, the purposes of neatly arranged and appropriately adhered window films are many. A sheet of well-installed decorative window film may provide you with opportunities to express your personality and creativity, and/or offer you privacy from scenes and distractions that may otherwise be overwhelming. The Blackout Opaque Privacy Window Film is designed to ensure almost 100% opacity and is ideal for applications that require absolute privacy or view-shielding. Great for office glass partitions, and conference or study room windows, the film's completely black tint enhances your concentration and gathers your focus. It is chic; it is modern; it is smart. The film is durable and scratch-resistant.